docker-volume-netshare: plugin can't handle volumes in docker-compose v2

We successfully used the plugin for nfs mounts with docker volume create, followed by docker run -v. However with docker-compose we ran into a problem (http://jbu.io/2015/10/23/mount-nfs-efs-or-cifssamba-volumes-in-docker/#comment-2584967532).

As far as I understand we have the follwing problem: Given this docker-compose.yml file in a projectdir test:

version: '2'

volumes:
  data:
    driver: nfs

services:
  some_service:
    image: my_image
    volumes:
      - data:/mnt

docker-compose asks the plugin to create a volume test_data which in turn tries to mount something from a host test_data (which of course does not exist).

Solution would be to add a driver option to be used as follows

volumes:
  data:
    driver: nfs
      driver_opts:
        share: my.nfs.host:/path/to/share

Thus the plugin knows that the requested volume with name test_data refers to a share my.nfs.host:/path/to/share to be mounted under /var/lib/docker-volumes/netshare/nfs/my.nfs.host/path/to/share.

This way we are even compatible with mixed docker-compose and pure dockerclient runs.

BTW: an in advance docker volume created volume can be used the following way

volumes:
  data:
    external:
      name: my.nfs.host/path/to/share

So instead my proposed option share: my.nfs.host:/path/to/share you might implement name: my.nfs.host/path/to/share